smgenericin.hh

// Licensed GNU LGPL v2.1 or later: http://www.gnu.org/licenses/lgpl-2.1.html
 
#ifndef SPECTMORPH_GENERIC_IN_HH
#define SPECTMORPH_GENERIC_IN_HH
 
#include <string>
 
namespace SpectMorph
{
 
class GenericIn
{
public:
  static GenericIn* open (const std::string& filename);
 
  virtual ~GenericIn();
  virtual int get_byte() = 0;     // like fgetc
  virtual int read (void *ptr, size_t size) = 0;
  virtual bool skip (size_t size) = 0;
  virtual size_t get_pos() = 0;
  virtual unsigned char *mmap_mem (size_t& remaining) = 0;
  virtual GenericIn *open_subfile (size_t pos, size_t len) = 0;
};
 
}
 
#endif /* SPECTMORPH_GENERIC_IN_HH */